Seal-lock



(No Model.)

W. K. EDGAR.

SEAL LOCK.

rTnn STATES VILLIAM K. EDGAR, OF COLORADO SPRINGS, COLORADO.

SEAL-LOCK.

SPECIFICATION forming part of Letters Patent No. 584,544, dated June 15,1897.

Application led February 24, 1897. Serial No. 624,794. (No model.) i

To all whom, t may concern;-

Be it known that LWILLIAM K. EDGAR, a citizen of the United States,residing at Colov rado Springs, in the county of El Paso and State ofColorado, have invented a new and useful Seal-Lock, of which thefollowing is a specification.

The invention relates to seal-locks adapted particularly for use insecuring freight and other car doors; and it has for its object toprovide a lock capable of use in connection with either a side or an enddoor, the same having common means for locking the staplebolt and seal,and said means being adapted when the seal has been 'removed to bedisengaged with facilityfrom the bolt and without the use of tools, and,furthermore, to simplify, strengthen, and otherwise improve theconstruction set forth in Patents Nos. 535,026 and 563,916, granted tomyself and W. L. Sebring on March 5, 1895, and July 14, 1896,respectively.

Further objects and advantages of this invention will appear in thefollowing description, and the novel features thereof will beparticularly pointed out in the appended claims.

In the drawings, Figure 1 is a perspective view of a lock constructed inaccordance with this invention applied in an operative position to acar-door, a portion only of the latter being shown, the locking-boltbeing illustrated as in engagement with a staple. Fig. 2 is a verticalcentral section of the same, showing the parts in their locked position.Fig. 3 is'a similar view showing the parts in their unlocked position.Fig. 4 is atransverse sectional view taken in the plane of thelocking-pin. Fig. 5 is a detail view of the locking-bolt detached. Fig.6 is a similar view of the locking-pin detached. Fig. 7 is a similarview of the trip or releasing pin detached.

Similar numerals of reference indicate corresponding parts in all theiigures of the drawings.

1 designates a hasp adapted to be attached in the ordinary or anypreferred manner to a door, and 2 a staple adapted to be secured to thejamb or casing of the door for engagement by the eye 3 of the hasp, saidpart-s being of the ordinary construction.

4 represents the casing of the lock, which is adapted to be secured tethe framework of a car by means of bolts 5 or their equivalents, andformed longitudinally in this casing is a bolt guide or Way consistingof verticallyalined notches G, formed in the upper and lower walls ofthe casing for the reception of the locking-bolt 7 ,which is adaptedwhen eX- tended to engage the staple to hold the eye of the hasp inplace thereon.

The casing is preferably made hollow to secure lightness, and the mainor body portion thereof, in which the bolt is mounted, is fitted with aremovable cap S,in which is formed a seal-seat, said cap being providedwith lugs 9, which it into the interior of the main or hollow portion ofthe casing and being secured to said main or hollow portion byscrews lOor their equivalents.

The seal-seat consists of parallel side shoulders 11, between which is acavity 12 to form a space in rear of the seal 13 to facilitate breakingthe latter, and these shoulders are connected at their lower ends by atransverse ledge 14 in the same plane therewith. The seat is partlyclosed at its outer side to prevent the introduction or removal of theseal, except by sliding the same longitudinally and upwardly thereintoby lneans of overhanging upper and lateral iianges 15 and 16, thelateral flanges 16 terminating short of the lower ends of the shoulders11 to facilitate the engagement of the upper end of a seal with theseat.

The Hoor of the cavity in the seat is provided with a guide-openin g 17to register with a corresponding opening 18 in the rear wall of thecasing for thefreception of a lockingpin 18, which is adapted foroperation in a plane transverse to that of the locking-bolt 7, saidlocking-pin being provided near its front end with a reduced or neckportion 19, which when arranged in the plane of the locking-bolt isadaptedto release the latter for longitudinal movement. The bolt isslotted longitudinally, as shown at 20, and the main portion of thisslot, while of a width sufficient to embrace the reduced or neck portionof the locking-pin, is insufficient in width to receive the locking-pinat any other points than at said neck; but at the upper end of the slotin the bolt is an enlargement 2l of sufficient width to receive the bodyportion of the lock- ICO ing-pin. This enlargement, which necessarilyforms an offset from the line of the slot, provides a 'shoulder 22, andwhen the body portion of the locking-pin is in engagement with thisshoulder, as shown in Fig. 2, the locking-bolt is held from longitudinalmovement.

In connection with the abovedescribed mechanism I preferably employ aseal of frangible construction, the same being of clay or equivalentmaterial, inscribed by number or otherwise to indicate destination orconvey any other inform-ation which may be necessary, and this seal isprovided at an intermediate point with an opening 23, through which isadapted to project the extremity of the locking-pin, whereby the seal isheld from longitudinal movement in its seat. In other words, thelocking-pin when extended, as shown in Fig. 2, serves not only to lockthe bolt, but to secure the seal in its seat, the sealseat beingparallel with the bolt-guide.

Attached to and projecting laterally from the locking-pin is anoperatingpin or lingerhold 24, which projects through a horizontalforwardly and rearwardly extending slot 25 in the side wall of thecasing and carries a disk 26, whereby the slot is covered to preventtampering with the interior of the lock and also to prevent the entranceof dirt. The

an ear 27, which fits in and partly closes the slot, as will be seen byreference to Fig. 4.

Formed on the rear end of the locking-pin isa stepped or shoulderedratchet 28, of which the shoulders are adapted to be engaged by the freeend of a spring-actuated pawl 29,

of the casing, the construction of said ratchet being such that thelocking-pin may be advanced or drawn forwardly to engage the locking-pinor seal without manipulating the pawl, but cannot be moved in theopposite direction, except after' previously tripping said pawl ordisengaging the same from the ratchet.

In order to provide for tripping the pawl from the front of the lock, Iemploy a trip or releasing pin consisting of a stem 3l, mounted in alguide consisting of registering openings 32 and 33, respectively, in thefront and rear locking-pin and a lateral arm 34 at the rear end.l ofsaid stem, said arm being provided with a beveled extremity to bearagainst the side surface of the pawl and move the latter in oppositionto its actuating-spring when the stem is drawn forwardly. The front endof the stem is normally arranged in the seal-seat or in the cavity whichis formed between the side shoulders of said seat, andl attached to thisprojecting extremity of the stem is a finger-ring 35 of such a size thatwhen the trip or releasing pin is pushed rearwardly to dispose itsextremityin rear of the plane of the side shoulders of the seat saidring may lie in the cavity of the seat around the lockpressure upon theinger-hold at the side of the casing to bring the reduced portion orneck of the locking-pin into theplane of the lbolt and hence in-toalinement with the reduced portion of the slot in the bolt.

From the above description it will be seen that the only spring used inthe construction of the lock. is that which isemployed in con` nectionwith the pawl. and which is subject to no strain, except during therepression of the pawl to release the locking-pin. ther-more, it will beseen that by forming the seal with a central opening through which theextremity of the locking-pin is exposed the frangibility of the seal isincreased, while i by being opaque and the opening. therein bcingsmaller in diameter than the ring which l is attached to the front endof the trip or rej leasing pin the releasing devices of the lock e areinvisible. v

cap of the casing is preferably provided with 1 L and the minor detailsof con-structionmayfloft resorted to without departing from the spiritI.or sacrificing. any of the advantages of. this invention'.

Various changes in the form, proportion,

Having described my invention, what I claim ismounted in a rearwardhollow extension 30 A casing provid-edv with a bolt-guide and asealseat', of a slotted bolt, the slot thereof having a 1. In aseal-lock, the combination` with a terminal enlargement, aloclring-pinvmounted for movement in a guide arranged in a` plane ltransverse to the bolt and extending through l the enlargement of thesl0t` therein, said lock@ 1 ing-pin having a reduced portionV or neckadapted to be received by the reducedportion of the slot in thel bolt toallowV longitudinal movement of the latter, and means for secur-k ingthe locking-pin with its body portion. in engagement with theenlargement ofthe slot 1 in the bolt, substantially as specified.

walls of the casing below the plane of the i 2. In a seal-lock., the'combination with a casing having a bolt-guide and a parallel seall seat,lof a slotted bolt fitted inv said guide', the slot therein having aterminal enlargement,- a locking-pin mounted in a guide disposedStransversely with relation to the bolt-guide and extending through theenlargement of the slot in the bolt, said pin having a reduced portionor neck adapted to be received by the reduced portion of the slot in thebolt, a seal fitted inv lsaid seat and having, an opening adapted toreceive the front end of the locking-pin, and means for securing thelocking- `pin in its normal position, substantially as specified. Y v Ye e e 3. In a seal-locl1, the combination with a Fur- IOC

IIO

locking-bolt and seal having an opening, of a locking -pin mounted formovement transversely to the bolt and adapted when extended to engagesaid bolt and seal, the locking-pin being provided with a ratchet, apawl yieldingly held in operative relation with the ratchet of thelocking-pin to secure the latter in its advanced position, and a trip orreleasing pin, having a beveled face arranged in operative relation withthe pawl, and a stem disposed contiguous to and adapted to be concealedby the seal, substantially as specified.

4. In a seal-lock, the combination with a casin g having a bolt-guideand a parallel sealseat, the latter being cut away to form a cavity, aseal fitted in said seat to cover the cavity, vand a bolt mounted in thebolt-guide, of a locking-pin mounted in a guide disposed transverselywith relation to the bolt-guide and adapted when extended or advanced toengage the bolt and seal, said pin extending through the cavity of theseal-seat, means for locking the pin in its advanced position, and atrip or releasing pin, arranged in operative relation with the lockingdevices of the pin, and having a stem projecting terminally'into saidcavity of the seat, and provided with a ring, adapted to be arranged inthe cavity around the locking-pin when the seal is secured by thelatter, substantially as specified.

5. In a seal-lock, the combination with a casing having a bolt-guide andseal-seat, a bolt mounted in said guide, and a seal fitted in the seat,of a lockingpin mounted for :movement transverselyT With relation to thebolt and adapted when in its extended or advanced position to engageboth bolt and seal, an operating-pin projecting laterally from the lock-

